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243 Cards in this Set
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meaning observed in the living organism
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in vivo
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refers to measurements performed outside the living body (traditionally in a test tube)
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in vitro
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allow scientists to evaluate the relationship between an experimental manipulation such as a lesion or drug administration and changes in behavior
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behavioral psychology
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why are behavioral measures crucial? (3)
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understanding the neurochemical basis of behavior, as well as drug-induced changes in that behavior; developing animal models of psychiatric disorders; screening the large number of newly designed and synthesized drug molecules in preclinical pharmaceutical settings
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three parts of the health extension act of 1985:
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the research should be relevant to human or animal health, advancement of knowledge, or the good of society; alternative methods such as computer simulations that do not require animal subjects must be considered; procedures must avoid or minimize discomfort, distress, and pain
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term used to describe the relationship between a testing procedure done on animals and its direct correlation to human test results or behavior
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face validity
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connection between two events that appear related, but cannot be assumed to be cause and effect
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correlational relationship
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a measure of how closely the results from animal tsets predict clnically useful effects in humans
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predictive validity
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the extent to which the animal measurement tool actually measures the characterisitcs being investigated
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construct validity
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to be optimal, an animal behavioral test, in addition to having predictive validity, should also do the following: (3)
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be speciic for the class of drug being screened; be sensitive so that the doses use are in a normal therapeutic range and show a dose-response relationship; demonstrate the same rank order of potency in the snimal test as the order of potency of teh therapeutic action of the drugs
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ranking drugs according to the dose that is effective
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rank order of potency
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meaning that the same results will be recorded each time the test is used
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reliability
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state characterized by a lack of spontaneous movement. usually associated with D2 receptor blockers, but can also be induced with D1 blocker
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catalepsy
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involves placing the animal in a prescribed area that is divided into squares so the investigator can record the number of squares traversed in a unit time
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open field test
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a soundproof box with a grid floor that can be electrified for shock delivery, a food or water dispenser for rewards, lights or loudspeaker for stimulus cue presentation, and levers that the animal cna press
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skinner box
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predertmined schedule used to determine when an animal will be rewarded for performing a specific behavior
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schedule of reinforcement
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referse to rewards given after a set number of responses
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fixed ratio
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refers to rewards given to the first response that occurs after a set amount of time has elapsed
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fixed interval schedule
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the reduction of perceived pain without loss of consciousness
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analgesia
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where heat produced by a beam of light is focused on a portion of a rats tail. the latency between onset of teh stimulus and the animals;s removal of its tail from the beam
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tail-flick test
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where an animal is trained to turn off an unpleasant foot shock by pressing the lever
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operant analgesia testing
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a maze that has a central start box and a number of arms or alleys radiating from the center. goal areas containng fod are at the end of each arm
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radial arm maze
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a start box at the beginning of an alley with one choice ponts that lead to the other final goal box which contains a small piece of food or another reward
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T maze
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spatial learning test that uses a large circular pool of water that has been made opaque by teh addition of milk or a dye. the animals are placed in the pool must swim until they find the escape platform that is hedden from view just below the surface of the water. subject demonstrates that is has leaned the spatial location of the submerged platformby navigating from different starting positions to the platform
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morris water maze
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assesses the type of memory often impaired by damage to the preforntal cortex in humans
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delayed response test
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evaluates working emory by imposing a delay between stimulus presentation and testing
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delayed response test
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test used to determine a rodent's level of anxiety by placing it in a two compartment box, one side lit and the other side dark. fewr crossings and less time spent in the lighted side indicate anxiety
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light-dark crossing task
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technique used to measure locomotor actiity and exploratry behavior by placing the animal on a grid and recording the number of squares traversed in a unit of time
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open field test
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maze type that involves a cross-shaped maze that has two open arms, two enclosed arms, and has been raised 50 cm off teh floor. it is used to test a rodents level of anxiety
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elevated plus maze
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test used to measure the level of anxiety in rodents by recoding the time spent investigating other animals
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social interaction test
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when animals are presented their usual food in a a new potentially treatening enviornment or conversly are provided food in their usual environment. in either case, the novelty prolongs the latency to begin eating
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novelty supressed feeding paradigm
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technique used to measure anxiety in rodents by recording their propensity to lick a drinking spout that will also deliver a mild eletric shock, also called a vogel test
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water-lick suppression test
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method that creats a dilemma for an animal by giving it the choice of selscting a reward that is accompanied by a negaive stimulus.
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conflict procedure
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an operant procedure involving alternate periods of lever pressing for reinforcement and lever pressing for reinforcement accompanied by foot sock; a classic method to screen antianxiety drugs
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geller-seifter conflict test
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operant tests like the geller-seifter test ahve tow major disadvantages:
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time consuming; behavior is artificially contrived
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predicts abuse liability of psychoactive drugs. pressing the liver according to a predetermined schedule of reinforcement triggers drug delivery into a veiwn of into discrete brain areas
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the drug self administration method
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earned response to a neutral stimulus given just prior to a negative stimulus in an effort to creat a fear association to the neutral stimulus
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conditioned emotional response
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enhancement of a startle response when a stimulus is preceded by the presentation of a conditioned fear stimulus
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fear-potentiated startle
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the point at which the effort required exceeds the reinforcing value
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breaking point
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a procedure whereby an animal self-administers a weak electrical shock to a specific brain area due to the reinforceing properties of the stimulation
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electrical self-stimulation
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pavlovian conditioing procedure used to test the rewarding effects of drugs in rats and mice
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place conditioning
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method used to determine the rewarding effects of a drug by allowing an animal to associate the drug with a specific environment and measuring its subsequent preference for that enviornment
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conditioned place preference
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any stimulus that signals reinforcement for a subject in an operant task
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discriminative stimulus
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a commonly employed procedure use to measure impulsivity; Test used to evaluate impulsivity (e.g., lack of behavior control). It requires the subject (human or otherwise) to rapidly press one button or lever when a square is displayed, and the other button or lever when any other shape appears. Periodically, a tone, which is the “stop” signal, is sounded following the visual presentation. The tone indicates that the subject should withhold responding.
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stop-signal task
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advantages to animal testing (3)
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subject with similar genetics, can maintain hgihtly controlled living enviornments, able to use invasive techniques
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__ act as discriminative stimuli in operant tasks
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drug effects
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process whereby brain cells are destroyed using an electrode to administer a high radio frequency current, or by injecting a neurotoxin that kills cels
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lesioning
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a chemical that is damaging to nerve cells
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neurotoxin
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chemical that damages a specific neural pathway leaving others intact
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specific neurotoxin
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technique used to measure neurtransmitter release in teh brain of an awake, freely moving animal by collecting samples of extracellular fluid and then analyzing the samples biochemcially using sensitive methods suchas HPLC
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microdialysis
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technique used to measure neurotransmitter release in teh brian of an awake, freely moving animal by using an microelectrode to measure electrochemical responses to an applied electrical signal
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in vivo voltammetry
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device used to electrically stimulate deep brain regions whle monitoring behavior or recoding the sumated electrical resopnse of thousands of neurons
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macroelectrode
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method of taking measurements of cell firing by inserting a fine-tipped electrode into the cell
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intracellular recording
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method of taking measurements of cell firing by inserting a fine-tipped electrode into the extracellular fluid surrounding the cell
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extracellular recording
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technique used to measure the function of a single ion channel by using a micropipette to isolate the ion channel and obtain an electrical recording
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patch clamp electrophysiology
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technique used to measure the affinity and relative density of receptors in a particular brain area by using a radioactively labeled ligand for the receptor
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radioligand binding
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what are the four ways to be sure that teh radioligand is actually binding to the specific biological receptors of interest
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specificity; saturability; reversibility and high affinity; biological relevance
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means that there are a finite number of receptors in a given amount of tissue
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saturability
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process used to detect the amount and location of bound radioligand by using a specialized film to createan image of where the radioligand is located within a tissue slice
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autoradiography
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a protein produced by white blood cells of teh immune system to recognize, attack, and destroy a specific foriegn substance
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antibody
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technique that uses antibodies to determine the brain areas or neurons that contain a specific antigen such as a protein, neuropeptide, or neurotransmitter
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immunocytochemistry
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a very sensitive method that sues antibodies to measure molecules in vody fluids or tissue extracts. the essay depends on competitive binding of an antibody to the antigen of interest
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radioimmunoassay
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technique used to locate cells that manufacture a specific protein or peptide by detecting the specific mRNA sequence coding for that substance. it can also be used to study changes in regional mRNA levels
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in situ hybridization
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based on teh assumption that when nerve cell firing incresases, the metabolic rate, that is the utilization of glucose and xygen, also increases
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2-deoxyglucose autoradiography
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X-ray based technique that provides computer-generated "slices" through the brain or body part that can be computer reconstructed int oa 3D image
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computerized tomography (CT)
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technique used to visualize in high resolution, detailed slices through the brain or other organ by taking computerized measruements of the signals emitted by atoms in teh tissue as they are exposed to a strong magetic field.
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magnetic resonance imaging (MRI)
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imaging technique used to determine the distribution of a radioactively labeld substance in teh body. it can be used to masure drug binding to neurotransmitter receptors or transporters in eh brain as well as measuring changes in metabolic activity reflecting neuron function
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positron emission tomography (PET)
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imaging technique used to view changes in regional blood flow or drug binding by using radioactively labeled compounds injected or inhaled into the body
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single-photon emmission computerized tomography (SPECT)
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technique used to regionally visualize brain acivity by detecting the increase in blood oxygen levels through magnetic resonance measurements of oxygenated and oxygen-depleated hemoglobin
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functional MRI (fMRI)
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a spin-off of functional MRI, a technique used in drug dvelopment to investigate the mechanism of drug action by visualizing changes in brain function following drug adminstration
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pharmacological MRI
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technique used to measrue brain activity by using electrodes taped on teh scalp to obtain electircal recordings in humans
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electroencephalography (EEG)
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electrical changes in neuron activiey in response to a sensroy stimulus
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event-related potentials
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mice that are homozygous for the targeted deletion of a specific gene. they are used to study the normal function of that gene as well as the involvement of teh gene in behavioral and physiological resopnse to various psychoactive drugs
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knockout mice
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mice that have a specific gene inserted into their DNA, so they produce a slightly diffrerent protein than is produced in wild-type mice
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knockin mice
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mice bred to replace one gene with another (e.g. a normal gene witha mutant version of that gene) theya re used to study genetic disorders
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transgenic mice
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a nucleotide that binds to a particular mRNA sequence, delaying translation and increasing mRNA degradation. used to create reversible supression of gene expression
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antisense nucleotide
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a horizontally oriented cylinder that is mechanically rotated at set speeds
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rotarod
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What are the two most common ways of nicotine absorption?
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inhalation and through membranes of the mouth (sublabial, sublingual
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which type of blood has higher conentrations of nicotine? why?
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arterial, oxygenated blood going to the organs
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what liver enzyme converts nicotine to cotinine?
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cytochrome p450 2A6
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are higher or lower levels of cytochrome p450 2A6 associated with decreased nicotine use?
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lower
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What receptor is used by nicotine?
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nicotininic acetylchonie
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Why is the first cigarette of the day the best?
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because neurons resynsitize after rest
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what are the three ways nicotine function as a reinforcer?
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primary reinforcer, potentiation of other rewarding stimulu, a conditioned stimulus paired with other rewarding stimuli
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Transcription factor that rises rapidly within cells and increased neural activity.
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c-fos
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Method used to produce large numbers of genetically identical cells.
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cloning
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Learned response to a neutral stimulus given just prior to a negative stimulus (e.g., an electric shock) in an effort to create a fear association to the neutral stimulus.
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conditioned emotional response
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High-frequency rodent calls typically emitted by juveniles as when separated from their mothers, indicating distress.
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ultrasonic vocalizations
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__ is the most commonly used illicit drug
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marijuana
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what is the age of most illicit drug use?
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18-20
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what are 4 factors that increased drug use in the US?
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temperance movement, advnaces in purification, increasing availability of purified drugs (hypodermic syringe, medicalization of drug addiction
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1906, regulated labeling of patient medicines and created the FDA
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pure food and frug act
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1914, regulated dispensing of use of opiod drugs and cocinae
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harrison act
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1920, banned alcohol sales except for medicinal use (repealed in 1933)
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eighteenth consitutional amendment (prohibition)
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1937, banned nonmedical us of cannabis (overturned by U.S.Supremem court in 1969)
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marijuana tax act
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1970, established the schedule of controlled substances and created the DEA
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controlled substances act
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strong urge addicts feel, compelling them to take a drug
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craving
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long periods time in which an addict is drug free
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remissions
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periods of time in which drug use recurs despite negative consequences
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relapses
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a behavioral pattern of drug use, characterized by overwhelming involvement with the use of a drug, the securing of its supply, and the high tnedecny to relapse after withdrawal
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addiction
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disorder involving excessive and harmful drug use by an individual, corresponding to addiction
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substance dependence
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new DSM-5 designation for a psychiatic disorder with features typically associated with addiction. This designation replaces both substance ab use and substance dependence categories in the DSM IV
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substance use disorder
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diroder ivliving teh overuse of a drug by an individual. it may or may not lead to substance dependence
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substance abuse
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what are the two types of progession in drug use?
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gateway theory, cyclical theory
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theory proposing that use of certain drugs of abuse, particualrly during childhood or adolescence increases the risk of progressing to other substances.
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gateway theory
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the cyclical theory of drug use says that an addict goes through these three stages
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1. periods of preoccupation with drugs and anticipation of upcoming use; 2. periods of drug intoxication that, in some cases, are associated with "binging" on the drug 3. periods ofollowing durgs use that are characterized by withdrawal symptoms and negative affect
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scheule of controlled substances: substances that have no accepted medical use in the US and have a high abuse potential (heroin, LSD, mescaline, marijuana, THC, MDMDA
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I
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scheule of controlled substances: substances that have a high abuse potential with severe psychic or physical dependence liability (opium, morphine, meperidine, cocain, amphetamine, ritalin, PCP)
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II
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scheule of controlled substances: usbstances that have an abuse potential less than those in schedules II andII, including compounds contaiing limited quantities of certain narcotics and nonnarcotic drugs (paregoric, barbiturates)
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II
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substances that have an abuse pontential less that those in schedule III (phenobarbital, chloral hydrate, valium, xanax
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IV
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substances that have an abuse potent less than those in schedule IV, consisting of preparations containing limited amounts of certain narcotic drugs generally for antitussive and antidiarrheal purposes
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V
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something that when provided to an organism, incresases the strength of the resopnse that was used to obtain the item.
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positive reinforcers
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how is postivie reinforcing quality of a drug usually measured?
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self-administration procedure
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a positively motivating subjective response to a drug, often experienced by humans as a euphoric feeling or "high"
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drug reward
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method used to measure the relative power of drug reinforcement by steadily increasing the response to reward ratio
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positive ratio procedure
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the point at chich an animal will no longer expend the effort required to recieve the reward
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breaking point
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delivery of a small dose of a drug by teh experimenter for teh purpose of eliciting drug seeking behavior typicially in an animal whose drug self administration responding was previously extinguished
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drug priming
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pavlovian conditioning procedure used to test the rewarding effects of drugs in rats and mice
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place conditioning
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a procedure whereby an animal self administers a weak electrical shock to a specific brain area due to the reinforcing properties of the stimulation
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electrical self stimulation
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condition characterized by unpleasant symptoms when an indivudal tries to cease drug use
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abstinence syndrome
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process whereby an indivudal eliminates a drug from the body and goes through an abstinence syndrome
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drug detoxification
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addiction is a __ disorder
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heritable
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diagnosis of simulatneous but distinct disease processes in an individual such as the porpensity for drug abusers to be diagnosed with other psychiatric problems
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comorbidity
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theory that addicton is based on an effort by the individual to treat oneself for mood or other ill feelings
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self-medication hypothesis
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situation in which multiply disorders are cuased by the same set of factors
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shared etiology
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three different personality related pathways to addiction
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1. behavioral disinhibition; 2. stress reduction; 3. reward sensitivity
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recovery from drug addiction without the aid of treatment
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natural recovery
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model of addiction that attempts to give a full account of addiction by incorporating biological, psychological, and sociological factors
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biopsychosocial model
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circuit of neurons that, when activated, mediates the rewarding effects of both natural rewards and drugs of abuse
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reward circuit
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changes in the brain functioning that attempt to compensate for the effects of repeated substance use
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neuroadaptation
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take place within the reward circuit and constitute a progressive down regulation of activity in this cirucit
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within system neuroadaptations
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involve the gradual recruitment of a neural circuit
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between system neuroadaptations
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neural system that is thought to be engaged during the transition from impulsive to compulsive drug use. this sytem is an important contributor to the negative mood state induced by withdrawal from abused drugs
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anti-reward system
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model of addiction in which the initial positive response to a drug is followed by an opposing withdrawl response as the drug wears off
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opponent-process model
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adaptive biological process in which an organisms response to repeated threats or challenges results in long lasting physiological or behavioral changes. this concept is distinguished from homeostasis, which referes to the tendecny of an organism to maintain physiolocal or behavioral stability in the face of threats or challeneges
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allostasis
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member of the Fos family of transcriptoin facts. this protein accumulates in some brain areas after repeated exopsure to various drugs of abuse and is hypothesized to contribute to the edevelopment of an addicted state
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delta fosb
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collection of higher order cognitive abilities including planning organization, probelm sovling, mental flexibility, and valuation of incentive.
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executive function
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plays an important role in executive function
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prefrontal cortex
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theory of addiction that emphasizes prefontal cortical deficits leading to difficulty in refraiing from durg use and the development of an abnoraml psychologiacl state in which drugs have much greater motivational power than normal reinforcers
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impaired response inhibition and salience attribution (IRISA)
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model of addiction that treats addictiona s a distinct medical disorder or disease
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disease model
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moedl of addiction that treates addiction as a personal and moral problem
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moral model
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the amount of alcohol in a given unit of blood, usually given as a percent representing milligrams of alcohol per 100 mililiters of blood
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blood alcohol concentration
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certain enzymes in gastirc fluid are about 60% more active in __ than __ in the absorption of alcohol
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men, women
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95% of alcohol is metabolized by the __ and 5% is metabolized by the __
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liver, lungs
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the average rate of alcohol absorption
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1-1.5 ounces per hour
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enzyme in the liver and stomach that oxidizes alcohol into the acetaldehyde
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alcohol dehydrogenase (ADLH)
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about 10% of __ have genes that code only for an inactive form of the enzyme acetaldehyde dehydrogenase (ALDH)
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asians
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the enzyme in the cytocrome p450 family responsible for metabolizing alcohol
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CYP 2E1
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the cytochrome p450 enzyme CTP 2E1 that metabolizes ethanol and many other drugs
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microsomal ethanol exidizing system (MEOS)
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1. increase in liver enzymes specific for drug metabolism in respone to repeated drug use. 2. process that establishes psychostimulant sentiziation by activating glutamate NMDA receptors in some cases D1 receptors
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induction
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tolerance that occurs with a single exposure to alcohol
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acute tolerance
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significantly increasese the P450 liver microsomal enzymes that metabolize the drug, more rapid metabolism menas blood levels of the drug may be reduced
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chronic tolerance
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when neurons adapt to the continued presence of alcohol by making compensatory changes in cell functions in reponse to alcohol
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pharmacodynamic tolerance
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the adjustment of behaviors when allowed to practice while under the influence of alcohol
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behavioral tolerance
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alcohol has a cross-dependence with __
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sedative-hypnotic class
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severe effects of alcohol withdrawal characterized by irrativilty, headaches, agitation, hallucinations, and confusion
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delirium tremens
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amnesia directly associated with heavy alcohol consumption
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blackout
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term used to describe teh anticipated effect of a drug and its role in drug action or perceived drug action
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expectancy
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BAC level: minimal effects; slight relaxation, mild mood elevation
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.02-.03
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BAC level: decreased alertness, relaxed inhibitions, mildly impaired judgement
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.05-.06
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BAC level: loss of motor coordination, slower reaction times, less caution
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.08-.10
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BAC level: major impariment of mental and physical control, slurred speech, exaggerated emotions, blurred vision, serious loss of judgment, large increases in reaction time
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.14-.16
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BAC level: staggering, inability to walk or dress without help, tears or rage with little provocation, mental confusion, double vision
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.2-.25
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BAC level: conscious but in a stupor, unaware of surroundings
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.3
|
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coma, lethal for 50% of population
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.45
|
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toxic effects associated with the ingestion of excess alcohol, characterized by unconsciousness vomitting, irregular breathing, and cold, clammy skin
|
alcohol poisoning
|
|
symptom of thiamine deficiency characterized by confusion, disorientation, tremors, poor coordination, ataxia, and in later stages, short-term memory loss
|
wernicke-korsakoff syndrome
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alcohol increases the size of __
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ventricles
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alcohol __ sexual performance, but __ sexual expectation __
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decreases, increases
|
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damaging effect of alcohol characterize by the accumulation of triglycerides inside liver cells
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fatty liver
|
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condition seen in chronic alcohol abusers caused by accumulation of acetaldehyde in the liver and characterized by inflammation of the liver, fever, jaundice, and pain
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alcoholic hepatitis
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condition seen in chronic alcohol abusers caused by accumulation of acetaldehyde in the liver that kills cells, stimulates scar tissue formation, and promotes cell death as scar tissue cuts off blood supplies
|
alcoholic cirrhosis
|
|
the damaging developmental effects of prenatal alcohol exposure
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fetal alcohol syndrome (FAS)
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4 signs and sympotms of FAS
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mental retardation, low birthweight, neurological problems, distictive craniofacial malformations
|
|
3 reasons that animal models are vital for alcohol research
|
animals are maintained and controlled, can use methods not appropriate for humans, genetic manipulatoins are possible
|
|
actions of neurotransmitters that depend on its abilityto move into membranes, changing the fluid character of the lipids that make up the membrane
|
nonspecific actionsprobably responsible for most of the acute effects of ethanol in intoxicationg doses
|
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specific neurtransmitter actions (alcohol acutely inhibits __ neurotransmission by reducing the effectiveness of the neurotransmitter at teh __ receptor
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glutamate; NMDA
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in teh adult brain, repeated us of alcohol leads to a neuroadaptive increase in teh number of __ receptors in response to reduced glutamate activity
|
NMDA
|
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alcohol acutely enhances __ induced Cl- influx to hyperpolarize neurons
|
GABA
|
|
alcohol consumption clearly increases __
|
mesolimbic firing
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a form of substance abuse characterized by compulsive alcohol seeking and use despite damaging social and health effects
|
alcoholism
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consumption of five or more alcoholic drinks within a 2 hour period
|
binge drinking
|
|
constitutes biological, psychological, and sociocultural influences contribute to the development or alcohol abuse
|
three factor vulnerability model of alcoholism
|
|
kind of alcoholic that begin drinking later in life and experience guilt and fear about their alcoholism. these rarely have trouble with the law or display anisocial activities. amny drink to escape stress or unpleasant situations in their environement
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type I
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|
kind of alcoholic that are almost always male and display thrill seeking antisocial and perhaps criminal activities.
|
type II
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|
method used to locate genes resonsible for a disorder such as alcoholism or schizophrenia by comparring similarities in the genetic loci of families with affected members
|
linkage study
|
|
technique used to identify genes associated with a disorder by comparing the genes of unrelated affected and unaffected people to determine if those who are affected and unaffected people to determine if those who are affected are more likely to possess a particular allele
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case-control method
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|
characteristic of alcoholics who insist that alcohol is not the source of their problems
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denial
|
|
friends and fmaily members who assist an alcoholic, allowing the individual to continue to function in society without getting treatment
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enablers
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procedure used to treat addicted individuals in which the drug is stopped and withdrwawal symptoms are treated until the abstinence syndrome has ended
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detoxification
|
|
counseling programs that involve educating the user, promoting behavioral change and alleviating problems caused by drug use
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psychosocial treatment programs
|
|
method of disease treatment that uses drugs to modify a clinical condition
|
pharmacotherapeutic treatment
|
|
a drug used to treat alcohoism by causing the buidup of toxic metaboiltes producing illness after alcohol intoxication
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disulfiram (antabuse)
|
|
a mu receptor antagonist that reduces consumption and craving ins ome alcoholic individuals, perhaps by reducing the positive feeling caused by alcohol
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naltrexone
|
|
a dual k/mu opioid antagonist effective in reducing lever pressing for alcohol in rodent studies, particualrly in alcohol dependent animals
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nalmefene
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a selective k-opioid antagonist. because it reduces the self administration of alcohol only in animals dependent on alcohol, a role for the k receptor in alcohol abuse is suspected
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nor-binaltophimine
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partial antagonist at NMDA receptors used for the treatment of alcoholism
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acamprosate
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a drug that binds to CRF1 receptors and produces little or no conformational change. in the presence of a CRF agonist, the agonist effect is reduced
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CRF1 antagonist
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the large leaf variety of tobacco; the principal source of modern day tobacco
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nicotiana tabacum
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the small leaf variety of tobacco that is native to eastern north america and the islands of the west indies
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nicotiana rustica
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principal product of nicotine metabolism by the liver
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cotinine
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specific type of cytochrome P450 that metabolizes nicotine into cotinine
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cytochrome P450 2A6
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mixture of hydrocarbons cretaed by the vaporization of nicotine in tobacco. it is the major component of cigarette smoke
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tar
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family of ionotropic rectors that are activated by ACh and selectvely stimulated by nicotine.
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nicotinic cholinergic receptors (nAChR's)
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device placed just under the skin of an animal that allows a drug to be administered continuously over a set period of time
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osmotic minipump
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__ has been found to improve performance on various cognitive task especially sustained attention and working memory
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nicotine
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theory that smoking is maintaind due to positive effects of nicotine such as incresaed concentration and greater mood control
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nicotine resource model
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theory that smoking is maintained by mood enhancement and increased conentration that occur when nicotine withdrawal symptoms are alleviated
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deprivation reversal theory
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disorder of the respiratory system characterize by shortness of breath, wheezing, chronic coughing, and chest tightness.
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chronic obstuctive pulmonary disease (COPD)
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what two main conditions comprise COPD?
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emphysema and bronchitis
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method to stop smoking that involves giving the smoker a safer nicotine source, thereby maintainng a level of nicotine in the body and reducing nictine withdrawal symptoms
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nicotine replacement
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__ is used as a natural insecticide
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nicotine
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what is the most efficient method of delivery for nicotine?
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inhalation
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african americans ususallly smoke __
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menthols
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who kinds of absorption for chewing tobacco
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sublabial; sublingual
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what are the two most common ways tof nicotine absorption?
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inhalation and through membranes of the mouth (sublabial/sublingual)
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which type of blood has higher cocentrations of nicotine?
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arterial (oxygenated bloodg oing to organs)
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more __ are type 1 alcoholics
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females
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Device used to electrically stimulate or record the response of a single cell intracellularly or extracellularly.
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microelectodes
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sterotaxic implantation for parkionosn in humans reduces __
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termors
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measures the same things as EEG but during a particualr task
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ERP
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used to predict alzhiemers
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EEG
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trangenic mice infused with defective genes were tested by beam walking, a rotarod, swimming performance and startle response to examine translational study of __
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huntingtons disease
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Transforming discoveries form basic neuroscience research into clinical applications
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Translational research
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Allows precise implantation of devices in specific brain areas
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Stereotaxic surgery
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How can a person develop and maintain a pattern of behavior that is so obviously destructive to his or her life?
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The paradox of addiction
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Addiction potential of a substance is influenced by its __
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route of admininstration
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When a first drug useres takes a drug, __ increases in the __
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DA, NAcc
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__% of alchohol is diffused passively thorugh the stomach
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20%
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increased level sof lthis cause flushing, nausea, headaches, and increased heart rate form alchohol
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acetaldehyde
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to visualize location of receptors on teh brain, __ is used
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autoradiography
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__ identifies cells that contain a given protein; the complementary technique __ is used to locate cells in a tissue slice that are manufacturing a particular protein by detecting the corresponding mRNA
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ICC, ISH
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Alternative form of a gene. Multiple ones of a gene differ by one or more nucleotides in the gene’s DNA sequence and may code for proteins with slightly different amino acid sequences.
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allele
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Difficulty or lack of the ability to experience pleasure. Such a state is characteristic of many depressed patients and may also occur during drug withdrawal in an addicted person.
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anhedonia
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The rewarding effects of drugs are studied using __, as well as the effects of drugs on the threshold for electrical self-stimulation of the brain
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place-conditioning procedures
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__ proposed that in the development of addiction, drug-taking behavior progresses from an impulsive stage (primary motivation for drug use is the positive reinforcing effect) to a compulsive stage (primary motivation is negative reinforcement from alleviation of unpleasant withdrawal symptoms). This shift is hypothesized to involve the recruitment of an anti-reward system in the brain.
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Koob and Le Moal
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A reward circuit mediates the acute rewarding and reinforcing effects of most abused drugs. One of the key components of this circuit is the DA pathway from the__ to the__
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VTA, NAcc
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Chronic ethanol leads to down-regulation of __receptors, making the organism more sensitive to seizure-inducing agents.
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GABAA
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Effect of heavy alcohol consumption that may be a sign of withdrawal, acute toxicity, or other negative effects on body regulation.
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hangover
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Developed need for a drug, such as alcohol or opioids, by the body as a result of prolonged drug use. Termination of drug use will lead to withdrawal symptoms (abstinence).
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physical dependence
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Decreased response to a drug as a direct result of repeated drug exposure.
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tolerance
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__are long-term smokers who smoke a few cigarettes daily on a regular basis but do not become dependent
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Chippers
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Drug that is an antagonist for nicotinic receptors.
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mecamylamine
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